On 3/9/2011 8:41 AM, ann kok wrote: > Hi > > I read ipv6forum.pdf about ipv6 > > It said > > MTU must be at least 1280 bytes (1500+) > Does it mean to set the mtu over 1500
No, it simply means that the minimum MTU for IPv6 is 1280. > > I set my linux box eth0 as 2001:db8:cafe:1111::12/64 but I can't ping it > inet6 2001:db8:cafe:1111::12/64 scope global tentative > > ls it this problem? Thank you Where are you pinging it from? also, the 2001:db8::/32 prefix is used for "documentation purposes" and might be handled differently by the TCP/IP stack. > > > # ping6 2001:db8:cafe:1111::12 > PING 2001:db8:cafe:1111::12(2001:db8:cafe:1111::12) 56 > > > data bytes > > >>From ::1 icmp_seq=1 Destination unreachable: > > > Address unreachable > > >>From ::1 icmp_seq=2 Destination unreachable: > > > Address unreachable > > > > > >
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